Nervous System Basics
What is the body's biological control system?
It is the nervous system
What does CNS AND PNS stands for?
Central nervous system (CNS)
Peripheral nervous system (PNS)
Which system readies you for emergencies?
Sympathetic nervous system
Which brain part controls breathing?
Medulla
Which lobe controls speech?
Frontal lobe
What connects the brain to the rest of the body?
Spinal Cord
The central nervous system, aka the spinal cord is responsible for reflexes.
Which system calms the body?
Parasympathetic nervous system
Which part controls balance?
Pons
Which lobe processes touch?
Parietal lobe
What do the sensory nerves do?
They carry information to the brain and sends information back out
Which system regulates heartbeat? & digestion?
The autonomic nervous system
Which system dilates pupils?
Sympathetic nervous system
Which part coordinates muscle movement?
Cerebellum
Which lobe processes hearing?
Temporal lobe
Which system controls voluntary skeletal muscle?
Somatic Nervous System
What happens to heart rate in sympathetic vs. parasympathetic control?
Sympathetic speeds it up, parasympathetic slows it down.
Why do strong emotions upset digestion?
The autonomic nervous system gets thrown off balance
What brain structure connects left & right hemispheres?
Corpus callosum
Which lobe helps with planning and decision-making?
Frontal lobe
Name the 2 divisions of the autonomic nervous system and tell us what they do.
Sympathetic System: prepares the body for emergencies.
Parasympathetic System: restores calm and conserves energy.
How do CNS and PNS work together during a reflex?
PNS senses stimulus, CNS sends quick motor response
Give 2 body changes from sympathetic activation.
Faster heartbeat & dilated pupils or any other valid sign: less saliva, more airflow, less digestion, glycogen release.
Which forebrain part controls motivation & emotion?
Hypothalamus
Which lobe interprets visual info from the eyes?
Occipital lobe